电解电容

• The conventional switching power supply usually use a diode rectifier followed by a bulk capacitor to convert ac voltage to dc voltage , resulting in the pulsating waveform of the input ac line current , low power factor ( generally 0 . 65 ) and high harmonic line current
  传统的开关电源设备通常采用二极管桥来进行整流和一个较大的电解电容来进行滤波以实现输入电压的交直流转换，导致输入电流为一个很窄的脉冲波并含有较多的谐波分量，功率因数变低(通常只有0 . 65 ) 。